How to make push notification with startActivity function (like Google Calendar Push Notifications on LockScreen)

Question

How to make push notification with startActivity function (like Google Calendar Push Notifications on LockScreen) I can't make push notification with activity lock screen.

Answer 1

You cannot and shouldn't startActivity directly. Use sendBroadcast flow and define intent-filter for your specific activity that handles the action:

Example:

In Notification service class:

val broadcastIntent = Intent("com.example.foo.bar.YOUR_ACTION")
broadcastIntent.putExtra("ParameterKey", parameterObject)
sendBroadcast(broadcastIntent)

In Manifest, define inetnt-filter for your receiver activity to catch the action and start itself:

<activity
    android:name=".ReceiverActivity" >  
    <intent-filter>
        <action android:name="com.example.foo.bar.YOUR_ACTION" />
        <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
</activity>